var notices = [];
var isUpate = false;
var currentRow;
var search_data = {
    page: 1, limit: 10,
    title: stitle.value
};
loadData();

function showData(arr) {
    list_div.innerHTML = "";
    if (arr.length == 0) {
        list_div.innerHTML = "暂无数据";
        return;
    }
    var allhtml = "";
    allhtml += "<table cellpadding='0' cellspacing='0'" +
        " width='100%'><tr class='theader'>" +
        "<th>通知标题</th><th>通知类型</th><th>发布时间</th>" +
        "<th>操作</th></tr>";
    for (var i = 0; i < notices.length; i++) {
        var a = arr[i];
        allhtml +=
            "<tr class='list'>" +
            "<td class='ntitle'>" + a.notice_title + "</td>" +
            "<td class='ntitle'>" + a.notice_type + "</td>" +
            "<td class='ntitle'>" + a.notice_time.substring(0, 10) + "</td>" +
            "<td class='ntitle'><a class='edit_a' onclick='upd(" + i + ")' href='javascript:;'>编辑</a>" +
            "<a class='del_a' onclick='del(" + a.id + ")' href='javascript:;'>删除</a></td>" +
            "</tr>";
    }
    allhtml += "</table>";
    list_div.innerHTML = allhtml;
}

function search() {
    search_data = {
        page: 1, limit: 10,
        notice_title: stitle.value
    }
    // loadData();
    loadData({notice_title: stitle.value});
}

function loadData(data) {
    list_div.innerHTML = "";
    loading.style.display = "block";
    ajax("/find_all_notice", search_data, function (data) {
        notices = data;
        showData(notices);
        loading.style.display = "none";
    });
    ajax("/count_all_notice", search_data, function (data) {
        data = parseInt(data);
        current_page.innerHTML = search_data.page;
        total_page.innerHTML =
            (data % search_data.limit == 0 ?
                data / search_data.limit :
                Math.floor(data / search_data.limit) + 1);
    });
}

function getNow() {
    var now = new Date();
    var y = now.getFullYear();
    var m = now.getMonth() + 1;
    var d = now.getDate();
    if (m < 10) m = "0" + m;
    if (d < 10) d = "0" + d;
    return y + "-" + m + "-" + d;
}

function save() {
    ajax(isUpate ? "upd_notice" : "add_notice", {
        id: currentRow ? currentRow.id : -1,
        notice_title: notice_title.value,
        notice_content: notice_content.value,
        notice_type: notice_type.value,
        notice_time: getNow(),
    }, function (data) {
        alert(isUpate ? "更新成功！" : "新增成功！");
        // alert("新增成功！");
        loadData();
        add_div.style.display = "none";
        list_div.style.display = "block";
        save_btn.style.display = "none";
        add_btn.style.display = "block";
        return_btn.style.display = "none";
        search_div.style.display = "block";
    })
}

function del(id) {
    if (!confirm("您确定要删除这个数据吗？")) {
        return;
    }
    var req = new XMLHttpRequest();
    req.open("post", "/del_notice");
    req.setRequestHeader("content-Type", "application/json;charset=utf-8");
    var data = {
        id: id
    }
    req.send(JSON.stringify(data));
    req.onreadystatechange = function () {
        if (req.readyState == 4 && req.status == 200) {
            if (req.responseText.trim() == "1") {
                alert("删除成功！");
            }
            loadData();
        }
    }
}

function upd(i) {
    isUpate = true;
    var n = notices[i];
    currentRow = n;
    add_div.style.display = "block";
    list_div.style.display = "none";
    save_btn.style.display = "block";
    add_btn.style.display = "none";
    search_div.style.display = "none";
    return_btn.style.display = "block";

    notice_title.value = n.notice_title;
    notice_content.value = n.notice_content;
    notice_type.value = n.notice_type;
    notice_time.value = n.notice_time.substring(0, 10);
    notice_title.focus();
}

function add() {
    isUpate = false;
    add_div.style.display = "block";
    list_div.style.display = "none";
    save_btn.style.display = "block";
    add_btn.style.display = "none";
    search_div.style.display = "none";
    return_btn.style.display = "block";

    notice_title.value = "";
    notice_content.value = "";
    notice_type.value = "";
    notice_time.value = getNow();
    notice_title.focus();
}


function returnMain() {
    add_div.style.display = "none";
    list_div.style.display = "block";
    save_btn.style.display = "none";
    add_btn.style.display = "block";
    search_div.style.display = "block";
    return_btn.style.display = "none";
}

function pre_page() {
    if (search_data.page >= 2 && search_data.page <= parseInt(total_page.innerHTML)) {
        search_data.page--;
        loadData();
    }
}

function next_page() {
    if (search_data.page < parseInt(total_page.innerHTML)) {
        search_data.page++;
        loadData();
    }
}

function index_page() {
    search_data.page = 1;
    loadData();
}

function tail_page() {
    search_data.page = parseInt(total_page.innerHTML);
    loadData();
}

function to_page() {
    var ip = parseInt(input_page.value);
    if (ip >= 1 && ip <= parseInt(total_page.innerHTML)) {
        search_data.page = ip;
        loadData();
    }
}





